There will no doubt be plenty of bugs to iron out. It would help if you can report them on Github because I don't check this forum very often. Probably the best place to report them is at https://github.com/curiousdannii/hugo/issues

In Lectrote 1.2.8 I have increased the size of the undo buffer to 4096. This is what I found was needed to be able to undo multiple turns in (the beginning of at least) Cryptozookeeper. If you find any other games (or even towards the end of that game) please let me know and we'll increase the buffer even more.